mock_objects_test.php

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<?php
// $Id: mock_objects_test.php 1700 2008-03-24 16:17:48Z lastcraft $
require_once(dirname(__FILE__) . '/../autorun.php');
require_once(dirname(__FILE__) . '/../expectation.php');
require_once(dirname(__FILE__) . '/../mock_objects.php');

class TestOfAnythingExpectation extends UnitTestCase {

    function testSimpleInteger() {
        $expectation = new AnythingExpectation();
        $this->assertTrue($expectation->test(33));
        $this->assertTrue($expectation->test(false));
        $this->assertTrue($expectation->test(null));
    }
}

class TestOfParametersExpectation extends UnitTestCase {

    function testEmptyMatch() {
        $expectation = new ParametersExpectation(array());
        $this->assertTrue($expectation->test(array()));
        $this->assertFalse($expectation->test(array(33)));
    }

    function testSingleMatch() {
        $expectation = new ParametersExpectation(array(0));
        $this->assertFalse($expectation->test(array(1)));
        $this->assertTrue($expectation->test(array(0)));
    }

    function testAnyMatch() {
        $expectation = new ParametersExpectation(false);
        $this->assertTrue($expectation->test(array()));
        $this->assertTrue($expectation->test(array(1, 2)));
    }

    function testMissingParameter() {
        $expectation = new ParametersExpectation(array(0));
        $this->assertFalse($expectation->test(array()));
    }

    function testNullParameter() {
        $expectation = new ParametersExpectation(array(null));
        $this->assertTrue($expectation->test(array(null)));
        $this->assertFalse($expectation->test(array()));
    }

    function testAnythingExpectations() {
        $expectation = new ParametersExpectation(array(new AnythingExpectation()));
        $this->assertFalse($expectation->test(array()));
        $this->assertIdentical($expectation->test(array(null)), true);
        $this->assertIdentical($expectation->test(array(13)), true);
    }

    function testOtherExpectations() {
        $expectation = new ParametersExpectation(
                array(new PatternExpectation('/hello/i')));
        $this->assertFalse($expectation->test(array('Goodbye')));
        $this->assertTrue($expectation->test(array('hello')));
        $this->assertTrue($expectation->test(array('Hello')));
    }

    function testIdentityOnly() {
        $expectation = new ParametersExpectation(array("0"));
        $this->assertFalse($expectation->test(array(0)));
        $this->assertTrue($expectation->test(array("0")));
    }

    function testLongList() {
        $expectation = new ParametersExpectation(
                array("0", 0, new AnythingExpectation(), false));
        $this->assertTrue($expectation->test(array("0", 0, 37, false)));
        $this->assertFalse($expectation->test(array("0", 0, 37, true)));
        $this->assertFalse($expectation->test(array("0", 0, 37)));
    }
}

class TestOfSimpleSignatureMap extends UnitTestCase {

    function testEmpty() {
        $map = new SimpleSignatureMap();
        $this->assertFalse($map->isMatch("any", array()));
        $this->assertNull($map->findFirstAction("any", array()));
    }

    function testExactReference() {
        $map = new SimpleSignatureMap();
        $ref = "Fred";
        $map->add(array(0), $ref);
        $this->assertEqual($map->findFirstAction(array(0)), "Fred");
        $ref2 = &$map->findFirstAction(array(0));
        $this->assertReference($ref2, $ref);
    }
    
    function testDifferentCallSignaturesCanHaveDifferentReferences() {
        $map = new SimpleSignatureMap();
        $fred = 'Fred';
        $jim = 'jim';
        $map->add(array(0), $fred);
        $map->add(array('0'), $jim);
        $this->assertReference($fred, $map->findFirstAction(array(0)));
        $this->assertReference($jim, $map->findFirstAction(array('0')));
    }

    function testWildcard() {
        $fred = 'Fred';
        $map = new SimpleSignatureMap();
        $map->add(array(new AnythingExpectation(), 1, 3), $fred);
        $this->assertTrue($map->isMatch(array(2, 1, 3)));
        $this->assertReference($map->findFirstAction(array(2, 1, 3)), $fred);
    }

    function testAllWildcard() {
        $fred = 'Fred';
        $map = new SimpleSignatureMap();
        $this->assertFalse($map->isMatch(array(2, 1, 3)));
        $map->add('', $fred);
        $this->assertTrue($map->isMatch(array(2, 1, 3)));
        $this->assertReference($map->findFirstAction(array(2, 1, 3)), $fred);
    }

    function testOrdering() {
        $map = new SimpleSignatureMap();
        $map->add(array(1, 2), new SimpleByValue("1, 2"));
        $map->add(array(1, 3), new SimpleByValue("1, 3"));
        $map->add(array(1), new SimpleByValue("1"));
        $map->add(array(1, 4), new SimpleByValue("1, 4"));
        $map->add(array(new AnythingExpectation()), new SimpleByValue("Any"));
        $map->add(array(2), new SimpleByValue("2"));
        $map->add("", new SimpleByValue("Default"));
        $map->add(array(), new SimpleByValue("None"));
        $this->assertEqual($map->findFirstAction(array(1, 2)), new SimpleByValue("1, 2"));
        $this->assertEqual($map->findFirstAction(array(1, 3)), new SimpleByValue("1, 3"));
        $this->assertEqual($map->findFirstAction(array(1, 4)), new SimpleByValue("1, 4"));
        $this->assertEqual($map->findFirstAction(array(1)), new SimpleByValue("1"));
        $this->assertEqual($map->findFirstAction(array(2)), new SimpleByValue("Any"));
        $this->assertEqual($map->findFirstAction(array(3)), new SimpleByValue("Any"));
        $this->assertEqual($map->findFirstAction(array()), new SimpleByValue("Default"));
    }
}

class TestOfCallSchedule extends UnitTestCase {
    function testCanBeSetToAlwaysReturnTheSameReference() {
        $a = 5;
        $schedule = &new SimpleCallSchedule();
        $schedule->register('aMethod', false, new SimpleByReference($a));
        $this->assertReference($schedule->respond(0, 'aMethod', array()), $a);
        $this->assertReference($schedule->respond(1, 'aMethod', array()), $a);
    }

    function testSpecificSignaturesOverrideTheAlwaysCase() {
        $any = 'any';
        $one = 'two';
        $schedule = &new SimpleCallSchedule();
        $schedule->register('aMethod', array(1), new SimpleByReference($one));
        $schedule->register('aMethod', false, new SimpleByReference($any));
        $this->assertReference($schedule->respond(0, 'aMethod', array(2)), $any);
        $this->assertReference($schedule->respond(0, 'aMethod', array(1)), $one);
    }
    
    function testReturnsCanBeSetOverTime() {
        $one = 'one';
        $two = 'two';
        $schedule = &new SimpleCallSchedule();
        $schedule->registerAt(0, 'aMethod', false, new SimpleByReference($one));
        $schedule->registerAt(1, 'aMethod', false, new SimpleByReference($two));
        $this->assertReference($schedule->respond(0, 'aMethod', array()), $one);
        $this->assertReference($schedule->respond(1, 'aMethod', array()), $two);
    }
    
    function testReturnsOverTimecanBeAlteredByTheArguments() {
        $one = '1';
        $two = '2';
        $two_a = '2a';
        $schedule = &new SimpleCallSchedule();
        $schedule->registerAt(0, 'aMethod', false, new SimpleByReference($one));
        $schedule->registerAt(1, 'aMethod', array('a'), new SimpleByReference($two_a));
        $schedule->registerAt(1, 'aMethod', false, new SimpleByReference($two));
        $this->assertReference($schedule->respond(0, 'aMethod', array()), $one);
        $this->assertReference($schedule->respond(1, 'aMethod', array()), $two);
        $this->assertReference($schedule->respond(1, 'aMethod', array('a')), $two_a);
    }
    
    function testCanReturnByValue() {
        $a = 5;
        $schedule = &new SimpleCallSchedule();
        $schedule->register('aMethod', false, new SimpleByValue($a));
        $this->assertClone($schedule->respond(0, 'aMethod', array()), $a);
    }
    
    function testCanThrowException() {
        if (version_compare(phpversion(), '5', '>=')) {
            $schedule = &new SimpleCallSchedule();
            $schedule->register('aMethod', false, new SimpleThrower(new Exception('Ouch')));
            $this->expectException(new Exception('Ouch'));
            $schedule->respond(0, 'aMethod', array());
        }
    }
    
    function testCanEmitError() {
        $schedule = &new SimpleCallSchedule();
        $schedule->register('aMethod', false, new SimpleErrorThrower('Ouch', E_USER_WARNING));
        $this->expectError('Ouch');
        $schedule->respond(0, 'aMethod', array());
    }
}

class Dummy {
    function Dummy() {
    }

    function aMethod() {
        return true;
    }

    function anotherMethod() {
        return true;
    }
}
Mock::generate('Dummy');
Mock::generate('Dummy', 'AnotherMockDummy');
Mock::generate('Dummy', 'MockDummyWithExtraMethods', array('extraMethod'));

class TestOfMockGeneration extends UnitTestCase {

    function testCloning() {
        $mock = &new MockDummy();
        $this->assertTrue(method_exists($mock, "aMethod"));
        $this->assertNull($mock->aMethod());
    }

    function testCloningWithExtraMethod() {
        $mock = &new MockDummyWithExtraMethods();
        $this->assertTrue(method_exists($mock, "extraMethod"));
    }

    function testCloningWithChosenClassName() {
        $mock = &new AnotherMockDummy();
        $this->assertTrue(method_exists($mock, "aMethod"));
    }
}

class TestOfMockReturns extends UnitTestCase {

    function testDefaultReturn() {
        $mock = &new MockDummy();
        $mock->setReturnValue("aMethod", "aaa");
        $this->assertIdentical($mock->aMethod(), "aaa");
        $this->assertIdentical($mock->aMethod(), "aaa");
    }

    function testParameteredReturn() {
        $mock = &new MockDummy();
        $mock->setReturnValue('aMethod', 'aaa', array(1, 2, 3));
        $this->assertNull($mock->aMethod());
        $this->assertIdentical($mock->aMethod(1, 2, 3), 'aaa');
    }

    function testReferenceReturned() {
        $mock = &new MockDummy();
        $object = new Dummy();
        $mock->setReturnReference('aMethod', $object, array(1, 2, 3));
        $this->assertReference($zref = &$mock->aMethod(1, 2, 3), $object);
    }

    function testPatternMatchReturn() {
        $mock = &new MockDummy();
        $mock->setReturnValue(
                "aMethod",
                "aaa",
                array(new PatternExpectation('/hello/i')));
        $this->assertIdentical($mock->aMethod('Hello'), "aaa");
        $this->assertNull($mock->aMethod('Goodbye'));
    }

    function testMultipleMethods() {
        $mock = &new MockDummy();
        $mock->setReturnValue("aMethod", 100, array(1));
        $mock->setReturnValue("aMethod", 200, array(2));
        $mock->setReturnValue("anotherMethod", 10, array(1));
        $mock->setReturnValue("anotherMethod", 20, array(2));
        $this->assertIdentical($mock->aMethod(1), 100);
        $this->assertIdentical($mock->anotherMethod(1), 10);
        $this->assertIdentical($mock->aMethod(2), 200);
        $this->assertIdentical($mock->anotherMethod(2), 20);
    }

    function testReturnSequence() {
        $mock = &new MockDummy();
        $mock->setReturnValueAt(0, "aMethod", "aaa");
        $mock->setReturnValueAt(1, "aMethod", "bbb");
        $mock->setReturnValueAt(3, "aMethod", "ddd");
        $this->assertIdentical($mock->aMethod(), "aaa");
        $this->assertIdentical($mock->aMethod(), "bbb");
        $this->assertNull($mock->aMethod());
        $this->assertIdentical($mock->aMethod(), "ddd");
    }

    function testReturnReferenceSequence() {
        $mock = &new MockDummy();
        $object = new Dummy();
        $mock->setReturnReferenceAt(1, "aMethod", $object);
        $this->assertNull($mock->aMethod());
        $this->assertReference($zref =& $mock->aMethod(), $object);
        $this->assertNull($mock->aMethod());
    }

    function testComplicatedReturnSequence() {
        $mock = &new MockDummy();
        $object = new Dummy();
        $mock->setReturnValueAt(1, "aMethod", "aaa", array("a"));
        $mock->setReturnValueAt(1, "aMethod", "bbb");
        $mock->setReturnReferenceAt(2, "aMethod", $object, array('*', 2));
        $mock->setReturnValueAt(2, "aMethod", "value", array('*', 3));
        $mock->setReturnValue("aMethod", 3, array(3));
        $this->assertNull($mock->aMethod());
        $this->assertEqual($mock->aMethod("a"), "aaa");
        $this->assertReference($zref =& $mock->aMethod(1, 2), $object);
        $this->assertEqual($mock->aMethod(3), 3);
        $this->assertNull($mock->aMethod());
    }

    function testMultipleMethodSequences() {
        $mock = &new MockDummy();
        $mock->setReturnValueAt(0, "aMethod", "aaa");
        $mock->setReturnValueAt(1, "aMethod", "bbb");
        $mock->setReturnValueAt(0, "anotherMethod", "ccc");
        $mock->setReturnValueAt(1, "anotherMethod", "ddd");
        $this->assertIdentical($mock->aMethod(), "aaa");
        $this->assertIdentical($mock->anotherMethod(), "ccc");
        $this->assertIdentical($mock->aMethod(), "bbb");
        $this->assertIdentical($mock->anotherMethod(), "ddd");